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Our offices are closed for Good Friday. Orders placed online will be processed Monday 4/6/2026.

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Cummins Belts and Belt Tensioners for ISX and QSX Diesel Engines

Our wide selection of Cummins Belts and Belt Tensioners are sure to help with your ISX and QSX engine needs.

If you do not see the Cummins part you are looking for, please use our quote request form or call us at 888.687.0539: our knowledgeable inside sales staff will gladly assist you.

3104860

RIBBED V-BELT - ISX / QSX

Genuine Cummins Part

$165.54

DS-3100141

ALTERNATOR DRIVE BELT - ISX / QSX

Surplus Item - Special Pricing

$17.28

888.687.0539 (U.S.)|225.706.4858 (Int.)

Monday-Friday 7am-5pm CST
8784 S. Choctaw Dr. Baton Rouge, LA 70815
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Caterpillar® and all of the Caterpillar® engine models listed on this website are registered trademarks of Caterpillar, Inc. Cummins® and all of the Cummins® engine models listed on this website are registered trademarks of Cummins. Detroit Diesel® and all of the Detroit Diesel® engine models listed on this website are registered trademarks of Daimler AG. John Deere® and all of the John Deere® engine models listed on this website are registered trademarks of John Deere. Allison Transmission® and all of their transmission models listed on this website are registered trademarks of Allison Transmission®. Diesel Parts Direct is not an authorized dealer for Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission. None of the parts beginning with "DS" or "R" are genuine Caterpillar, Cummins, Detroit Diesel, John Deere, or Allison Transmission items.

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